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imap_num_msg — Returns the number of messages in the mailbox


int imap_num_msg(connection);
int connection: IMAP connection ID


Number of messages in mailbox; FALSE on error


imap_num_msg() returns the number of messages in the currently open mailbox. This can be used for looping through each message in the mailbox in turn so some individual action can be performed.


From versions 3.0.2 and 4.0

See also

See also: imap_num_recent


Example 608. Get the number of messages in the mailbox

$imap = imap_open("{localhost}mbox-bak","graeme","inferno");

// get messages
$number = imap_num_msg($imap);

echo "Number of messages: $number<BR>\n";

// display message subjects
for ($i=1; $i<=$number; $i++) {
   $header = imap_header($imap, $i);
   echo "Subject: ", $header->Subject, "<BR>\n";



Number of messages: 3
Subject: Test Message 1
Subject: Test Message 2
Subject: Test Message 3

PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at The authors of this book have elected not to choose any options under the OPL. This online book was obtained from and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.

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